Eras are divisions in geologic time divided into periods and epochs. any time periods in the past. divisions of time based on cultural standards, as in "Stone Age." the time frames during which a certain

asked Jan 28, 2020 81.7k views

4 votes

by Kuffs

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4 votes

Please add the full excercise, what is the point of it?

Sepans answered Feb 3, 2020

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